That screeching noise you hear is the sound of Floyd Mayweather slamming the breaks on fighting for Rizin FF.

Three days after making an appearance at a press conference to announce a New Year's Eve fight in Japan, Mayweather on Wednesday issued a lengthy Instagram post, claiming he "never agreed to an official bout with Tenshin Nasukawa" and hadn't heard of the 20-year-old kickboxing sensation before Sunday.

According to Mayweather, a different plan for a private exhibition in front of a "small group of wealthy spectators" was in place - until the press conference, which Mayweather said was "misleading" in announcing the Nasukawa fight as an official bout.

"Once I arrived to the press conference, my team and I were completely derailed by the new direction this event was going and we should have put a stop to it immediately," Mayweather wrote on Instagram. "I want to sincerely apologize to my fans for the very misleading information that was announced during this press conference and I can assure you that I too was completely blindsided by the arrangements that were being made without my consent nor approval."

Mayweather said he only went along with what was being presented during the press conference to not create a disturbance. He apologized to his fans for not putting a stop to it.

You can read his full statement below:

Now that I am back on U.S. soil after a long and disappointing trip to Tokyo, I now have the time to address you, my fans and the media in regards to the upcoming event on December 31st that was recently announced. First and foremost, I want it to be clear that I, Floyd Mayweather, never agreed to an official bout with Tenshin Nasukawa. In fact (with all due respect) I have never heard of him until this recent trip to Japan. Ultimately, I was asked to participate in a 9 minute exhibition of 3 rounds with an opponent selected by the "Rizen Fighting Federation". What I was originally informed of by Brent Johnson of "One Entertainment" was that this was to be an exhibition put on for a small group of wealthy spectators for a very large fee. This exhibition was previously arranged as a "Special Bout" purely for entertainment purposes with no intentions of being represented as an official fight card nor televised worldwide. Once I arrived to the press conference, my team and I were completely derailed by the new direction this event was going and we should have put a stop to it immediately. I want to sincerely apologize to my fans for the very misleading information that was announced during this press conference and I can assure you that I too was completely blindsided by the arrangements that were being made without my consent nor approval. For the sake of the several fans and attendees that flew in from all parts of the world to attend this past press conference, I was hesitant to create a huge disturbance by combating what was being said and for that I am truly sorry. I am a retired boxer that earns an unprecedented amount of money, globally, for appearances, speaking engagements and occasional small exhibitions. A post shared by Floyd Mayweather (@floydmayweather) on Nov 7, 2018 at 10:53am PST

Now that I am back on U.S. soil after a long and disappointing trip to Tokyo, I now have the time to address you, my fans and the media in regards to the upcoming event on December 31st that was recently announced. First and foremost, I want it to be clear that I, Floyd Mayweather, never agreed to an official bout with Tenshin Nasukawa. In fact (with all due respect) I have never heard of him until this recent trip to Japan. Ultimately, I was asked to participate in a 9 minute exhibition of 3 rounds with an opponent selected by the "Rizen Fighting Federation". What I was originally informed of by Brent Johnson of "One Entertainment" was that this was to be an exhibition put on for a small group of wealthy spectators for a very large fee. This exhibition was previously arranged as a "Special Bout" purely for entertainment purposes with no intentions of being represented as an official fight card nor televised worldwide. Once I arrived to the press conference, my team and I were completely derailed by the new direction this event was going and we should have put a stop to it immediately. I want to sincerely apologize to my fans for the very misleading information that was announced during this press conference and I can assure you that I too was completely blindsided by the arrangements that were being made without my consent nor approval. For the sake of the several fans and attendees that flew in from all parts of the world to attend this past press conference, I was hesitant to create a huge disturbance by combating what was being said and for that I am truly sorry. I am a retired boxer that earns an unprecedented amount of money, globally, for appearances, speaking engagements and occasional small exhibitions.